Automatic Welding, 2025, №01

2025 №01 (08)

DOI of Article 10.37434/as2025.01.01

2025 №01 (02)

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"Avtomatychne Zvaryuvannya" (Automatic Welding), #1, 2024, pp. 3-7

Features of origination and propagation of fatigue cracks under cyclic mechanical loads of deposited plates

I.О. Ryabtsev, V.V. Knysh, А.А. Babinets, S.О. Solovej, І.І. Ryabtsev, І.P. Lentyugov

E.O. Paton Electric Welding Institute of the NAS of Ukraine 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: ryabtsev39@gmail.com

The features of origination and propagation of fatigue cracks were investigated at cyclic mechanical loads of specimens, deposited in a one wear resistant layer or with an additional plastic sublayer. Fundamentally different nature of propagation of fatigue cracks was revealed in the specimens, deposited with a plastic sublayer of low-carbon steel compared to the specimens without a sublayer. In the specimens deposited with a plastic sublayer unlike the specimens deposited without a sublayer when the main fatigue crack passed through the deposited layer and the sublayer, at the boundary of the wear resistant layer and the plastic sublayer, as well as the sublayer and the base metal, branching and a kind of inhibition of the main fatigue crack are observed. 7 Ref., 6 Fig.
Keywords: arc surfacing, cyclic loading, fatigue life, fatigue cracks, single-layer surfacing, multilayer surfacing, wear resistant layer, plastic sublayer


Received: 26.08.2024
Received in revised form: 24.10.2024
Accepted: 13.01.2025

References

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2. Makhnenko, V.I. (2006) Safe service life of welded joints and assemblies of modern structures. Kyiv, Naukova Dumka [in Russian].
3. Kravtsov, T.G., Stalnichenko, O.I., Olejnik, N.V. (1994) Surfacing restoration of parts and assessment of their strength. Kyiv, Vyshcha Shkola [in Russian].
4. Marek, A., Junak, G., Okrajni, J. (2009) Fatigue life of creep resisting steels under conditions of cyclic mechanical and thermal interactions. Archives of Mater. Sci. and Engin., 40(1), 37-40.
5. Du Toit, M., Van Niekerk, J. (2010) Improving the life of continuous casting rolls through submerged arc cladding with nitrogen-alloyed martensitic stainless steel. Welding in the World, 54(11-12), R342-R349. https://doi.org/10.1007/BF03266748
6. Kaierle, S., Overmeyer, L., Alfred, I. et al. (2017) Singlecrystal turbine blade tip repair by laser cladding and remelting. CIRP J. of Manufacturing Sci. and Technol., 19, 196-199. https://doi.org/10.1016/j.cirpj.2017.04.001
7. Caccese, V., Blomquist, P.A., Berube, K.A., Webber, S.R., Orozco, N.J. (2006) Effect of weld geometric profile on fatigue life of cruciform welds made by laser/GMAW processes. Marine Structures, 19(1), 1-22. https://doi.org/10.1016/j.marstruc.2006.07.002

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